Book Image

Learning DevOps

By : Mikael Krief
Book Image

Learning DevOps

By: Mikael Krief

Overview of this book

The implementation of DevOps processes requires the efficient use of various tools, and the choice of these tools is crucial for the sustainability of projects and collaboration between development (Dev) and operations (Ops). This book presents the different patterns and tools that you can use to provision and configure an infrastructure in the cloud. You'll begin by understanding DevOps culture, the application of DevOps in cloud infrastructure, provisioning with Terraform, configuration with Ansible, and image building with Packer. You'll then be taken through source code versioning with Git and the construction of a DevOps CI/CD pipeline using Jenkins, GitLab CI, and Azure Pipelines. This DevOps handbook will also guide you in containerizing and deploying your applications with Docker and Kubernetes. You'll learn how to reduce deployment downtime with blue-green deployment and the feature flags technique, and study DevOps practices for open source projects. Finally, you'll grasp some best practices for reducing the overall application lead time to ensure faster time to market. By the end of this book, you'll have built a solid foundation in DevOps, and developed the skills necessary to enhance a traditional software delivery process using modern software delivery tools and techniques
Table of Contents (23 chapters)
Free Chapter
1
Section 1: DevOps and Infrastructure as Code
6
Section 2: DevOps CI/CD Pipeline
9
Section 3: Containerized Applications with Docker and Kubernetes
12
Section 4: Testing Your Application
16
Section 5: Taking DevOps Further

Using the LaunchDarkly solution

In the previous section, we discussed using open source tools for feature flags, which can be a good solution but requires some infrastructure components and is dependent on a development language (in our example, it was .NET Core).

For the better use and management of feature flags, we can use a cloud solution that does not require the implementation of an architecture and provides a lot of features around the feature flags.

Among these cloud solutions (SaaS), there is LaunchDarkly (https://launchdarkly.com/), which is a SaaS platform that is composed of a feature flags management back office and SDKs that allow us to manipulate the features flags in our applications.

The LaunchDarkly SDKs are available for many development languages, such as .NET, JavaScript, Go, and Java. The complete list of SDKs is available here: https://launchdarkly.com/features...